Guthrie went four innings and threw 59 pitches. He said afterward that he threw all four of his pitches and felt as good as he normally does at this point in the spring.
"Right now it's really about repeating my delivery and trying to get consistency," Guthrie said. "It was good."
Guthrie said the next step will be to get up to 75 pitches over four or five innings.
Doug Miller is a reporter for MLB.com. Follow him on Twitter @DougMillerMLB. This story was not subject to the approval of Major League Baseball or its clubs.